Revert "Disable asset digests"

This reverts commit 3513976.

Author: josh

test/fixtures/scss_project/config/environments/development.rb

@@ -12,8 +12,6 @@
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false
 
-  config.assets.digest = false
-
   # Don't care if the mailer can't send
   config.action_mailer.raise_delivery_errors = false